Project Gamma downpipes for the S55 engine are now offered with a Bootmod 3 tune. This package is a great way to start running our downpipes smooth and loud. With this bundle, our customers have the opportunity to upgrade the performance of their vehicles and tune them to their preferred specifications at a lower cost. The combination of Project Gamma downpipes and a Bootmod 3 tune is an excellent upgrade for your S55 engine. 

Customers will need an ENET cable and laptop to flash-tune the vehicle. Email us regarding ENET cable questions.

*2-step colder spark plugs gapped to 0.22 spec. are recommended for stage 2 applications*

Project Gamma S55 Downpipes

Made specifically for BMW S55 Engine

Project Gamma downpipes for the S55 engines models feature a 3” construction along with a stainless steel v-band to pipe transition that is machined with CNC to precision. Our downpipes are the best bang for your buck mod available for your S55 engine with gains from 50 Horsepower and 60 Torque when tuned. Rather than necking down closer to the turbos like most of our competitors, our downpipes present a full 3D design up to the last inches proving a greater increase in flow. Project Gamma downpipes are handcrafted to extreme rust resistance using 304 Stainless Steel.

 ******The product you see has been Ceramic Coated. To protect your engine bay from possible heat damage please purchase our Ceramic Coating add-on before checking out, otherwise your downpipes will just come polished.******